benzpyrinium bromide

noun

benz·​pyr·​in·​i·​um bromide ˌbenz-pə-ˈrin-ē-əm- 

: a cholinergic drug C₁₅H₁₇BrN₂O₂ that has actions and uses similar to those of neostigmine and has been used especially to relieve postoperative urinary retention

called also benzpyrinium